CN222160505U

CN222160505U - Drawing frame drafting mechanism

Info

Publication number: CN222160505U
Application number: CN202420881936.9U
Authority: CN
Inventors: 姚佳; 任炜; 王骥星
Original assignee: Baoji Yurun Precision Machinery Co ltd
Current assignee: Baoji Yurun Precision Machinery Co ltd
Priority date: 2024-04-26
Filing date: 2024-04-26
Publication date: 2024-12-13
Anticipated expiration: 2034-04-26

Abstract

The utility model discloses a drawing frame drafting mechanism which comprises a front drafting zone, wherein the front drafting zone consists of a third roller and a third rubber roller, the third roller is tangent to the third rubber roller, two ends of the third roller penetrate through and are rotatably assembled in a limiting block, two ends of the third roller penetrate through and are rotatably installed in a lifting block, one end of the third roller is connected with a third motor, the bottom of the third rubber roller is mutually matched with an adsorption mechanism, the limiting block is slidably assembled in a limiting frame, the lifting block is threadedly assembled on lifting screws, the left end and the right end of the adsorption mechanism are fixedly connected with the limiting frame, the upper end and the lower end of the lifting screw are rotatably assembled on positioning blocks, the positioning blocks penetrating through the lower end are in friction transmission connection with a conveyor belt, one lifting rod end is connected with a fourth motor, the positioning blocks are fixedly connected on the limiting frame, a middle drafting zone is assembled in the middle of the limiting frame, and the front drafting zone is assembled at the tail part of the lifting screw.

Description

Drawing frame drafting mechanism

Technical Field

The utility model relates to the technical field of textile equipment, in particular to a drawing frame drafting mechanism.

Background

In the field of textile machinery, drawing frames are key devices which are mainly used for processing fibers such as cotton, wool, hemp, chemical fibers and the like so as to improve the straightening parallelism, the mixing uniformity and the internal structure of the sliver of the fibers. Wherein, the drafting mechanism is used as the core part of the drawing frame, and the performance of the drafting mechanism directly influences the quality and the production efficiency of the product.

The drawing can draw the fiber into thin, the weight of the fiber per unit length becomes light, the fiber generates relative displacement in the axial direction of the yarn, so that the fiber is distributed on a longer length, the stretching parallel and separating state of the fiber can be improved by drawing, various fibers are uniformly mixed with each other, the uniformity of long segments of the sliver is improved, and the weight unevenness is reduced.

The traditional drawing frame drafting mechanism is generally composed of three parts, namely a front drafting zone, a middle drafting zone and a rear drafting zone, wherein the drafting is formed by the tension between the front drafting zone and the rear drafting zone, and the drafting zone mainly adopts a combination form of a roller and a rubber roller, so that the fiber is drafted by friction between the roller and the rubber roller. However, as the length of the processed fiber increases, the friction coefficient between the roller and the rubber roller also changes, so that the stability of the drawing force is affected. In addition, because the rubber roller surface is easy to adhere short fluff and other impurities, the fiber receives additional resistance in the drafting process, so that the product quality is affected, and the maintenance cost of equipment is increased.

Disclosure of utility model

(One) solving the technical problems

In view of the shortcomings of the prior art, the present utility model is directed to a drawing frame drafting mechanism, so as to solve the problems set forth in the background art.

(II) technical scheme

The drawing frame drafting mechanism comprises a front drafting zone, wherein the front drafting zone consists of a third roller and a third rubber roller, the third roller is tangent with the third rubber roller, two ends of the third roller penetrate through and are rotatably assembled in a limiting block, two ends of the third roller penetrate through and are rotatably installed in a lifting block, one end of the third roller is connected with a third motor, the bottom of the third rubber roller is mutually matched with an adsorption mechanism, the limiting block is slidably assembled in a limiting frame, the lifting block is assembled on lifting screws in threads, the left end and the right end of the adsorption mechanism are fixedly connected with the limiting frame, the upper end and the lower end of the lifting screw are rotatably assembled on positioning blocks penetrating through the lower end of the positioning block, a conveying belt is connected between the two lifting screws in a friction transmission mode, one lifting rod end portion is connected with a fourth motor, the positioning blocks are fixedly connected onto the limiting frame, the middle drafting zone is assembled in the middle of the limiting frame, the tail is fixedly connected with supporting columns at two sides of the bottom of the limiting frame.

Preferably, the adsorption mechanism consists of a suction fan and a U-shaped frame, the suction fan is communicated with the side wall of the U-shaped frame, and the left end and the right end of the U-shaped frame are fixedly connected with the limiting frame.

Preferably, the middle drafting zone and the rear drafting zone are provided with pressure rollers, the left end and the right end of each pressure roller penetrate and are rotatably arranged on the corresponding loop bar, the loop bar is slidably arranged in a chute which is arranged on the limiting frame and is matched with the loop bar in size, the bottom of the loop bar is fixedly connected with a spring, and the other end of the spring is fixedly connected in the chute of the limiting frame.

Preferably, the middle drafting zone consists of a second roller, a second rubber roller, a second gear and a second motor, wherein the second roller and the second rubber roller are penetrated and rotatably assembled on the limiting frame, the end part of one side of the second roller is fixedly connected with the second gear, the second gears are connected with each other in a meshed manner, and the second gear on the second roller is connected with the output end of the second motor.

Preferably, the back drafting zone comprises first roller, first rubber roll, first gear and first motor, first roller and first rubber roll are all run through and rotate the assembly on the locating rack, and one side tip all rigid coupling has first gear, intermeshing connects between the first gear, first gear on the first roller is connected with the output of first motor, first motor rotational speed is greater than the second motor.

Preferably, a long through groove is formed in the vertical direction of the limiting frame, and the end parts of the third roller and the third motor are assembled in the through groove.

Preferably, a chute with a T-shaped section is formed in the limiting block, and meanwhile, the tail parts of the third roller and the third rubber roller are correspondingly designed into a T shape matched with the third roller.

(III) beneficial effects

Compared with the prior art, the utility model provides a drawing frame drafting mechanism, which has the following beneficial effects:

According to the utility model, the lifting screw is arranged to drive the third roller to lift up and down, so that the friction force between the third roller and the third rubber roller is adjusted, the friction coefficient between the third roller and the third rubber roller can be adjusted in time according to different fiber lengths, the quality of fiber drafting is ensured, and the floating hair on the surface of the third rubber roller can be scraped out through the fit between the third rubber roller and the adsorption mechanism, so that the cleaning of the third rubber roller is realized, and meanwhile, the third roller can be adjusted in the up-down position, so that the mechanism is conveniently cleaned more carefully, and the subsequent fiber drafting operation cannot be influenced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the front draft zone and its associated structure according to the present utility model;

FIG. 3 is a schematic diagram of the drafting zone, the back drafting zone and the related structures in the present utility model;

FIG. 4 is a schematic structural view of an adsorption structure according to the present utility model;

In the figure, 1, a front drafting zone; 2, a third roller, 3, a third rubber roller, 4, a third motor, 5, a limiting block, 6, a limiting frame, 7, a lifting block, 8, a lifting screw, 9, a positioning block, 10, a fourth motor, 11, a conveyor belt, 12, an adsorption mechanism, 13, a middle drafting zone, 14, a second roller, 15, a second rubber roller, 16, a second gear, 17, a second motor, 18, a pressure roller, 19, a loop bar, 20, a spring, 21, a rear drafting zone, 22, a first roller, 23, a first rubber roller, 24, a first gear, 25, a first motor, 26, a support column, 27, a suction fan, 28 and a U-shaped frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution for a drawing frame drafting mechanism:

According to the drawing frame drafting mechanism shown in fig. 1-4, the drawing frame drafting mechanism comprises a front drafting zone 1, the front drafting zone 1 is composed of a third roller 2 and a third rubber roller 3, the third roller 2 is tangent to the third rubber roller 3, both ends of the third roller 2 penetrate through and are rotatably assembled in a limiting block 5, both ends of the third roller 2 penetrate through and are rotatably installed in a lifting block 7, one end of the third roller 2 is connected with a third motor 4, the bottom of the third rubber roller 3 is mutually matched with an adsorption mechanism 12, the limiting block 5 is slidably assembled in a limiting frame 6, the lifting block 7 is threadedly assembled on a lifting screw 8, both left and right ends of the adsorption mechanism 12 are fixedly connected with the limiting frame 6, the upper end and the lower end of the lifting screw 8 are rotatably assembled on a positioning block 9 penetrating through the lower end of the positioning block 9, a friction transmission connection is provided with a conveyor belt 11 between the two lifting screw 8, one lifting rod end is connected with a fourth motor 10, the positioning block 9 is fixedly connected on the limiting frame 6, a middle drafting zone 13 is assembled in the middle of the limiting frame 6, the tail is assembled in the front drafting zone 1, and both sides 26 are fixedly connected with the bottom of the limiting frame 6.

The adsorption mechanism 12 consists of a suction fan 27 and a U-shaped frame 28, the suction fan 27 is communicated with the side wall of the U-shaped frame 28, and the left end and the right end of the U-shaped frame 28 are fixedly connected with the limiting frame 6, so that fiber cotton wool generated in the drafting process is adsorbed conveniently, and a more favorable operation environment is created.

The middle drafting zone 13 and the rear drafting zone 21 are provided with the pressure roller 18, the left end and the right end of the pressure roller 18 penetrate and are rotatably arranged on the loop bar 19, the loop bar 19 is slidably arranged in a chute which is arranged on the limiting frame 6 and is matched with the loop bar 19 in size, the bottom of the loop bar is fixedly connected with the spring 20, the other end of the spring 20 is fixedly connected in the chute of the limiting frame 6, the spring 20 always pushes the pressure roller 18 upwards, the cotton spinning fiber is ensured to be always pushed by the greatest force, and the fiber is drafted more thoroughly.

The middle drafting zone 13 consists of a second roller 14, a second rubber roller 15, a second gear 16 and a second motor 17, wherein the second roller 14 and the second rubber roller 15 are all penetrated and rotatably assembled on the limiting frame 6, one side end part is fixedly connected with the second gear 16, the second gears 16 are mutually meshed and connected, and the second gear 16 on the second roller 14 is connected with the output end of the second motor 17.

The back drafting zone 21 comprises a first roller 22, a first rubber roller 23, a first gear 24 and a first motor 25, wherein the first roller 22 and the first rubber roller 23 are penetrated and rotationally assembled on the limiting frame 6, one side end part is fixedly connected with the first gear 24, the first gears 24 are connected with each other in a meshed manner, the first gear 24 on the first roller 22 is connected with the output end of the first motor 25, the rotating speed of the first motor 25 is greater than that of the second motor 17, and drafting force can be formed between the back drafting zone and the middle drafting zone.

An elongated through groove is formed in the vertical direction of the limiting frame 6, and the ends of the third roller 2 and the third motor 4 are assembled in the through groove.

The limiting block 5 is internally provided with a chute with a T-shaped section, and meanwhile, the tail parts of the third roller 2 and the third rubber roller 3 are correspondingly designed into a T shape matched with the third roller 2 and the third rubber roller 3, so that the third roller 2 and the third rubber roller 3 can be driven by the limiting block 5 to slide together and cannot separate from the rotating block 5 due to rotation of the third roller and the third rubber roller.

When the device is specifically used, the fourth motor 10 drives the lifting screw 8 to rotate, so that the lifting block 7 moves up and down, the third roller 2 is driven to move up and down in the limiting frame 6, when the friction force is regulated to be proper according to the fibers, the third motor 4 is started, the third roller 2 is rotated, a drafting force is generated through the third rubber roller 3, when the fibers are transmitted between the second roller 14 and the second rubber roller 15, the fibers start to be drafted, meanwhile, the third rubber roller 3 is driven to rotate, floating wool stuck on the surfaces of the fibers is tangent to the adsorption mechanism 12, the floating wool is continuously accumulated until the fibers are scraped out of the adsorption mechanism 12, the fibers pass through the middle drafting zone 13, pass through the upper tangential plane of the pressure roller 18 and then pass through the first rubber roller 23 and the first roller 22 until the fibers are subjected to the next sliver operation.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.

Claims

1. The drawing frame drafting mechanism comprises a front drafting zone (1), and is characterized in that the front drafting zone (1) consists of a third roller (2) and a third rubber roller (3), the third roller (2) is tangential to the third rubber roller (3), both ends of the third roller (2) penetrate through and are rotationally assembled in a limiting block (5), both ends of the third roller (2) penetrate through and are rotationally installed in a lifting block (7), one end of the third roller is connected with a third motor (4), the bottom of the third rubber roller (3) is mutually matched with an adsorption mechanism (12), the limiting block (5) is slidingly assembled in a limiting frame (6), the lifting block (7) is in threaded assembly on a lifting screw (8), the left end and the right end of the adsorption mechanism (12) are fixedly connected with the limiting frame (6), the upper end and the lower end of the lifting screw (8) are rotationally assembled on a positioning block (9), the two lifting screws (8) are in friction transmission connection with a conveying belt (11), the tail part (6) is fixedly connected with the four end parts (6) of the four drafting zone (1), support columns (26) are fixedly connected to two sides of the bottom of the limiting frame (6).

2. The drawing frame drafting mechanism as set forth in claim 1, wherein the adsorption mechanism (12) consists of a suction fan (27) and a U-shaped frame (28), the suction fan (27) is communicated with the side wall of the U-shaped frame (28), and the left end and the right end of the U-shaped frame (28) are fixedly connected with the limiting frame (6).

3. The drawing frame drafting mechanism as claimed in claim 1, wherein a pressure roller (18) is arranged between the middle drafting zone (13) and the rear drafting zone (21), the left end and the right end of the pressure roller (18) penetrate and are rotatably arranged on a sleeve rod (19), the sleeve rod (19) is slidably arranged in a chute which is arranged on the limiting frame (6) and is in fit with the sleeve rod (19), a spring (20) is fixedly connected to the bottom of the sleeve rod, and the other end of the spring (20) is fixedly connected in the chute of the limiting frame (6).

4. The drawing frame drafting mechanism according to claim 1, wherein the middle drafting zone (13) consists of a second roller (14), a second rubber roller (15), a second gear (16) and a second motor (17), the second roller (14) and the second rubber roller (15) are all penetrated and rotatably assembled on the limiting frame (6), the second gear (16) is fixedly connected to one side end part, the second gears (16) are meshed with each other, and the second gear (16) on the second roller (14) is connected with the output end of the second motor (17).

5. The drawing frame drafting mechanism as claimed in claim 1, wherein the back drafting zone (21) consists of a first roller (22), a first rubber roller (23), a first gear (24) and a first motor (25), the first roller (22) and the first rubber roller (23) are all penetrated and rotatably assembled on the limiting frame (6), the first gear (24) is fixedly connected to one side end part, the first gears (24) are meshed with each other, the first gear (24) on the first roller (22) is connected with the output end of the first motor (25), and the rotating speed of the first motor (25) is greater than that of the second motor (17).

6. The drawing frame drafting mechanism as claimed in claim 1, wherein the limiting frame (6) is provided with a long through groove in the vertical direction, and the ends of the third roller (2) and the third motor (4) are assembled in the through groove.

7. The drawing frame drafting mechanism according to claim 1, wherein the limiting block (5) is internally provided with a chute with a T-shaped section, and the tail parts of the third roller (2) and the third rubber roller (3) are correspondingly designed into a T shape matched with the chute.